CN219159572U - Rotary cylindrical surface ultrahigh pressure on-off valve - Google Patents
Rotary cylindrical surface ultrahigh pressure on-off valve Download PDFInfo
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- CN219159572U CN219159572U CN202320250117.XU CN202320250117U CN219159572U CN 219159572 U CN219159572 U CN 219159572U CN 202320250117 U CN202320250117 U CN 202320250117U CN 219159572 U CN219159572 U CN 219159572U
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Abstract
The utility model discloses a rotary cylindrical ultrahigh pressure on-off valve, which comprises: the valve body, two sets of concave valve seats and two sets of limit joints, wherein, be equipped with the column case in the valve body, two sets of concave valve seats are located the valve body, and locate the both sides of column case respectively to form sealed face with the column case, two sets of limit joints install respectively at the medium import and export end of valve body, and limit joint is formed with the part that is used for installing the concave valve seat, and is equipped with elastic element with the concave valve seat between, can make between column case and the concave valve seat in close contact. The concave valve seat and the sealing surface of the columnar valve core are isolated from the medium, so that the medium passing through the concave valve seat and the columnar valve core can not cause corrosion of the sealing surface, the service life of the device is prolonged, the concave valve seat is pushed to the cylindrical surface of the columnar valve core by using the pressure of the ultrahigh pressure medium, the device is not easy to release pressure in high pressure, and the sealing effect is good.
Description
Technical Field
The utility model relates to the technical field of valves, in particular to a rotary cylindrical ultrahigh pressure on-off valve.
Background
In the field of pressure testing, it is necessary to perform field tests and factory inspection on products such as drilling blowout preventers, oil (gas) extraction trees, wellhead devices, throttle valves, manifolds and the like, and pressure resistance tests on various metal pipes, nonmetallic hoses, joints, containers, accessories and the like of hydraulic equipment, engineering machinery, mining machinery hydraulic hoses.
The conventional pressure test device is configured as a pressure test pump (pressure source), a check valve, a shut-off valve, a pump-end unloading valve, a container unloading valve, and the like.
Most of the existing pressure test devices are needle valve structures, as shown in fig. 4, when the needle valve is designed at high pressure and ultrahigh pressure, the fluid channel 300 is smaller, and when high pressure and ultrahigh pressure polluted water passes through the needle valve (from point a to point B), high-speed jet flow directly acts on the needle valve core sealing surface 100 and the valve seat sealing surface 200, long-term high pressure and ultrahigh pressure polluted water medium acts on the sealing surface to cause the service life of the needle valve core to be not high, so that the use and maintenance cost is increased, and the system pressure maintaining index is not beneficial to being reached.
Therefore, the applicant provides a rotary cylindrical surface ultrahigh pressure on-off valve with long service life and good sealing effect.
Disclosure of Invention
Aiming at the defects of the prior art, the utility model aims to provide a rotary cylindrical surface ultrahigh pressure on-off valve.
The utility model adopts the following technical scheme to realize the aim:
a rotary cylinder ultra-high pressure on-off valve, comprising:
the valve body is internally provided with a columnar valve core;
the two groups of concave valve seats are positioned in the valve body, are respectively arranged at two sides of the columnar valve core and form sealing surfaces with the columnar valve core;
the two groups of limit joints are respectively arranged at the medium inlet and outlet ends of the valve body, the limit joints are provided with parts for installing the concave valve seats, and elastic elements are arranged between the limit joints and the concave valve seats, so that the columnar valve cores can be in close contact with the concave valve seats.
Further, a first fluid channel is arranged in the limit joint, a second fluid channel is arranged in the concave valve seat, and the first fluid channel and the second fluid channel are mutually communicated.
Further, a passage capable of communicating with the second fluid passage is provided in the columnar valve element.
Further, an annular groove is formed in the outer diameter of the concave valve seat, and a combined seal matched with the limit joint is arranged in the groove.
Further, a steel ball is arranged at the inner bottom of the valve body, and the steel ball is in contact with the bottom surface of the columnar valve core.
Further, a sealing element is arranged between the end corner of the concave valve seat and the elastic element.
Further, the elastic element is an elastic plastic gasket or a metal spring gasket.
Further, the upper part of the columnar valve core is connected with the actuator through a connecting rod.
Further, the actuator is a rotary cylinder, a servo motor or a hand wheel.
Compared with the prior art, the utility model provides the rotary cylindrical ultrahigh pressure on-off valve, which has the following beneficial effects:
the sealing surface of the concave valve seat and the columnar valve core is isolated from the medium, so that the medium passing through the concave valve seat and the columnar valve core can not cause corrosion of the sealing surface, the service life of the device is prolonged, and when the pressure of the medium is low, the elastic force provided by the elastic element is used for keeping the concave valve seat and the columnar valve core in close contact with each other so as to achieve the sealing effect; when ultrahigh pressure medium passes through, the acting force of the ultrahigh pressure medium is applied to the position of the elastic element, the acting surface is the longitudinal sectional area of the concave valve seat contacted with the elastic element, and the concave valve seat moves towards the small gap of the columnar valve core after being stressed, so that thrust force is generated to act on the cylindrical surface of the columnar valve core, when the columnar valve core is closed, the concave valve seat is not communicated with the columnar valve core, the sealing effect is achieved, and the higher the ultrahigh pressure medium pressure is, the larger the thrust force is, the sealing force is, and the sealing effect is better.
Drawings
FIG. 1 is a schematic diagram of the structure of the present utility model;
FIG. 2 is an enlarged schematic view of the structure at C in FIG. 1;
FIG. 3 is a schematic top view of a concave valve seat of the present utility model;
fig. 4 is a schematic structural view of a conventional pressure test apparatus.
The mark in the figure is 1, a limit joint; 2. a valve body; 3. a valve cavity; 4. a concave valve seat; 5. a columnar valve core; 6. an actuator; 7. a connecting rod; 8. an elastic element; 9. a sealing member; 10. sealing in a combined way; 11. a bracket; 12. a gasket; 13. a first fluid passage; 14. a second fluid passage; 15. a groove; 16. a passage; 17. a steel ball; 100. sealing surface of valve core; 200. sealing surface of valve seat; 300. a fluid passage.
Detailed Description
The utility model is further illustrated by the following examples in conjunction with the accompanying drawings:
in the description of the present utility model, it should be noted that the directions or positional relationships indicated by the terms "center", "upper", "lower", "left", "right", "longitudinal", "horizontal", "inner", "outer", etc. are based on the directions or positional relationships shown in the drawings, are merely for convenience of describing the present utility model and simplifying the description, and do not indicate or imply that the apparatus or elements referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as limiting the present utility model. Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying positive importance.
It should be noted that, unless explicitly stated or limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present utility model will be understood in specific cases by those of ordinary skill in the art.
As shown in fig. 4, the fluid channel 300 of the needle valve is smaller in the high-pressure and ultrahigh-pressure design, when the medium is from point a to point B, the medium directly acts on the needle valve core sealing surface 100 and the valve seat sealing surface 200, and long-term high-pressure and ultrahigh-pressure polluted water medium acts on the sealing surfaces to cause the service life of the needle valve core to be not high, so that the use and maintenance cost is increased, and the system pressure maintaining index is not beneficial to being reached.
Accordingly, an embodiment of the present utility model provides a rotary cylinder ultrahigh pressure on-off valve, referring to fig. 1 to 3, including: two groups of limit joints 1, a valve body 2, two groups of concave valve seats 4, a columnar valve core 5 and an elastic element 8.
Referring to fig. 1, a columnar valve core 5 is disposed in the valve body 2, and the columnar valve core 5 is cylindrical;
referring to fig. 1, two sets of concave valve seats 4 are located in the valve body 2 and are respectively arranged at two sides of the columnar valve core 5, the cylindrical surface of the columnar valve core 5 is matched with the columnar concave surface of the concave valve seat 4, a sealing surface is formed with the columnar valve core 5, and the columnar valve core 5 is rotatably arranged between the two sets of concave valve seats 4;
referring to fig. 1, two sets of limit joints 1 are respectively installed at medium inlet and outlet ends of a valve body 2, two ends of the valve body 2 are provided with internal threaded holes, the limit joints 1 are provided with external threads, two ends of the valve body 2 are respectively in threaded connection with the limit joints 1, the limit joints are provided with parts for installing a concave valve seat 4, a cavity for installing the concave valve seat 4 is formed in a valve cavity 3, the internal threaded holes are formed in the cavity, one end of the concave valve seat 4 is provided with external threads, the other end of the concave valve seat 4 is provided with a columnar concave surface matched with a columnar valve core 5, the two sets of concave valve seats 4 are respectively in threaded connection with the limit joints 1 at two ends and are provided with elastic elements 8 between the concave valve seats 4, the elastic elements 8 are elastic plastic gaskets or metal spring gaskets, preferably, the elastic plastic gaskets adopt polyurethane gaskets, and the metal spring gaskets adopt gaskets, when the medium pressure is low, the elastic force provided by the elastic elements 8 is used for keeping close contact between the concave valve seat 4 and the columnar concave valve seat 5 so as to achieve a sealing effect, and the columnar concave surface matched with the columnar concave surface of the columnar valve seat 4 can enable the columnar valve core 5 to be in close contact with the concave valve seat 4.
Specifically, a valve cavity 3 penetrating through the top surface of the valve body 2 is arranged in the valve body 2, a columnar valve core 5 is positioned in the valve cavity 3, two groups of concave valve seats 4 are also arranged in the valve cavity 3, and the valve cavity 3 is communicated with the concave cavity of the limit joint 1.
In this embodiment, a first fluid channel 13 is disposed in the limit joint 1, a second fluid channel 14 is disposed in the concave valve seat 4, the first fluid channel 13 and the second fluid channel 14 are mutually communicated, and a passage 16 capable of being mutually communicated with the second fluid channel 14 is disposed in the columnar valve element 5.
Preferably, the elastic element 8 is in close contact with the end surface of the concave valve seat 4, and the elastic element 8 has the same size as the end surface of the concave valve seat 4 (i.e. the longitudinal cross-sectional area of the concave valve seat 4) and does not extend between the first fluid channel 13 and the second fluid channel 14, thereby avoiding obstruction to the passage of the medium.
When fully opened, the first fluid channel 13 and the second fluid channel 14 are communicated with the passage 16, the diameters of the first fluid channel 13 and the second fluid channel 14 are consistent, and when fully closed, the first fluid channel 13 and the second fluid channel 14 are communicated, and the second fluid channel 14 is not communicated with the passage 16.
Because the cylindrical surface of the columnar valve core 5 is matched with the columnar concave surface of the concave valve seat 4, the columnar valve core 5 and the concave valve seat 4 can be in close contact, so that the columnar valve core 5 has stronger shearing and extrusion effects when rotating between two groups of concave valve seats 4, even if the second fluid channel 14 contains fiber or tiny solid particle suspension medium, the sealing surface cannot be influenced, and meanwhile, when the columnar valve core 5 is fully opened and fully closed, the sealing surface of the columnar valve core 5 and the concave valve seat 4 is isolated from the medium, and therefore, the medium passing through the concave valve seat 4 and the columnar valve core 5 cannot cause corrosion of the sealing surface, and the service life of the device is prolonged.
In this embodiment, the outer diameter of the concave valve seat 4 is provided with an annular groove 15, the groove 15 and the concave valve seat 4 are on the same horizontal axis, a combined seal 10 matched with the limit joint 1 is arranged in the groove 15, the combined seal 10 adopts a combined seal ring, the combined seal 10 is positioned between the concave valve seat 4 and the limit joint 1, and plays a role of static seal when a medium passes through, so that erosion damage can not be caused to the seal in the groove 15.
In this embodiment, a steel ball 17 is disposed at the inner bottom of the valve body 2, the steel ball 17 contacts with the bottom surface of the columnar valve core 5, the steel ball 17 is disposed at the bottom of the valve cavity 3, and by disposing the steel ball 17, the friction force when the columnar valve core 5 rotates is reduced while the columnar valve core 5 is supported.
In this embodiment, a sealing element 9 is disposed between the end corner of the concave valve seat 4 and the elastic element 8, the sealing element 9 adopts a metal triangular pad, and when the medium acts, an extrusion sealing force between the concave valve seat 4 and the limit adaptor 1 is provided.
In this embodiment, the upper portion of the columnar valve element 5 is connected to the actuator 6 via a connecting rod 7.
The actuator 6 drives the connecting rod 7 to rotate, thereby driving the columnar valve core 5 to rotate, and only a small moment is required to open or close the valve, thereby achieving the control of the medium.
Specifically, a gasket 12 is arranged between the columnar valve core 5 and the connecting rod 7, the gasket 12 is placed in a placing groove formed in the top surface of the valve body 2, the top surface of the valve body 2 is connected with the support 11 through a screw, the top surface of the support 11 is connected with the actuator 6 through the screw, the connecting rod 7 penetrates through the support 11, and the support 11 supports the actuator 6.
In this embodiment, the actuator 6 is a rotary cylinder, a servo motor or a hand wheel.
The connecting rod 7, the columnar valve core 5 and the two groups of concave valve seats 4 are coaxially arranged.
Working principle: the concave valve seat 4 and the sealing surface of the columnar valve core 5 are isolated from the medium, so that the medium passing through the concave valve seat 4 and the columnar valve core 5 can not cause corrosion of the sealing surface, the service life of the device is prolonged, the cylindrical surface of the columnar valve core 5 is matched with the columnar concave surface of the concave valve seat 4, and when the pressure of the medium is lower, the elastic force provided by the elastic element 8 is used for keeping the concave valve seat 4 and the columnar valve core 5 in close contact so as to achieve the sealing effect; when ultrahigh pressure medium passes through, the acting force of the ultrahigh pressure medium is applied to the position of the elastic element 8, the acting surface is the longitudinal sectional area of the concave valve seat 4 contacted with the elastic element 8, the concave valve seat 4 moves towards the cylindrical valve core 5 with a small gap after being stressed, so that thrust force is generated to act on the cylindrical surface of the cylindrical valve core 5, when the cylindrical valve core 5 is closed, the concave valve seat 4 is not communicated with the cylindrical valve core 5, the sealing effect is achieved, and the sealing force is higher as the pressure of the ultrahigh pressure medium is higher, and the sealing effect is better.
What is not described in detail in this specification is prior art known to those skilled in the art.
The above embodiments are only for illustrating the technical solution of the present utility model, and not for limiting the scope of the present utility model. It will be apparent that the described embodiments are merely some, but not all, embodiments of the utility model. Based on these embodiments, all other embodiments that may be obtained by one of ordinary skill in the art without inventive effort are within the scope of the utility model. Although the present utility model has been described in detail with reference to the above embodiments, those skilled in the art may still combine, add or delete features of the embodiments of the present utility model or make other adjustments according to circumstances without any conflict, so as to obtain different technical solutions without substantially departing from the spirit of the present utility model, which also falls within the scope of the present utility model.
Claims (9)
1. A rotary cylinder ultrahigh pressure on-off valve, comprising:
the valve comprises a valve body (2), wherein a columnar valve core (5) is arranged in the valve body (2);
two groups of concave valve seats (4) are positioned in the valve body (2), are respectively arranged at two sides of the columnar valve core (5), and form sealing surfaces with the columnar valve core (5);
two groups of limit joints (1) are respectively arranged at the medium inlet and outlet ends of the valve body (2), the limit joints (1) are provided with parts for installing the concave valve seats (4), and elastic elements (8) are arranged between the limit joints and the concave valve seats (4), so that the columnar valve cores (5) can be in close contact with the concave valve seats (4).
2. The rotary cylindrical ultrahigh pressure on-off valve according to claim 1, wherein a first fluid channel (13) is arranged in the limit joint (1), a second fluid channel (14) is arranged in the concave valve seat (4), and the first fluid channel (13) and the second fluid channel (14) are mutually communicated.
3. The rotary cylinder ultrahigh pressure on-off valve according to claim 2, wherein a passage (16) capable of communicating with the second fluid passage (14) is provided in the columnar valve element (5).
4. The rotary cylindrical ultrahigh pressure on-off valve according to claim 1, wherein the concave valve seat (4) is provided with an annular groove (15) on the outer diameter, and a combined seal (10) matched with the limit joint (1) is arranged in the groove (15).
5. The rotary cylindrical ultrahigh pressure on-off valve according to claim 1, wherein a steel ball (17) is arranged at the inner bottom of the valve body (2), and the steel ball (17) is in contact with the bottom surface of the columnar valve core (5).
6. Rotary cylinder ultrahigh pressure on-off valve according to claim 1, characterized in that a sealing element (9) is arranged between the end corner of the concave valve seat (4) and the elastic element (8).
7. Rotary cylinder ultra-high pressure on-off valve according to claim 6, characterized in that the elastic element (8) is an elastic plastic gasket or a metal spring gasket.
8. The rotary cylinder ultrahigh pressure on-off valve according to claim 1, wherein the upper part of the columnar valve core (5) is connected with the actuator (6) through a connecting rod (7).
9. The rotary cylinder ultrahigh pressure on-off valve according to claim 8, wherein the actuator (6) is a rotary cylinder, a servo motor or a hand wheel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320250117.XU CN219159572U (en) | 2023-02-20 | 2023-02-20 | Rotary cylindrical surface ultrahigh pressure on-off valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320250117.XU CN219159572U (en) | 2023-02-20 | 2023-02-20 | Rotary cylindrical surface ultrahigh pressure on-off valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219159572U true CN219159572U (en) | 2023-06-09 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202320250117.XU Active CN219159572U (en) | 2023-02-20 | 2023-02-20 | Rotary cylindrical surface ultrahigh pressure on-off valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219159572U (en) |
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2023
- 2023-02-20 CN CN202320250117.XU patent/CN219159572U/en active Active
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